The Origami Master
Yoko's Paper Cranes
Fold Me a Poem
Spread Your Wings and Fly: An Origami Fold-and-Tell Story
this website to be the mose useful. It has the easiest origami I could find. I also bought these easy origami that have folding lines and eyes printed on them. You can buy them and various origami paper at your local A. C. Moore and Michaels.
The book is a wonderful book for teaching origami.
The ABC's of Origami: Paper Folding for Children